You guys asked, and we listened! Introducing our latest in dress up caps!
This Coolant Overflow Cap is CNC machined, and crafted from premium billet aluminum. Available in red, blue, black, or natural finish; it is designed to easily replace the original overflow cap and improve the visual effect under your hood! A great touch of personalization to your ride!
Product Color Disclaimer
Due to variances in the anodizing stage of production that are beyond our control, actual color hue may be different than what is pictured and what has also been previously offered by Boomba Racing. We apologize for any inconvenience and we sincerely appreciate your understanding. For further clarification, feel free to contact us.
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I purchased this for a 2006 STI, and it's the icing on the cake in my engine bay, nobody makes a aftermarket cap for the coolant overflow cap. It fits perfectly, snaps on and seats very snugly on the coolant overflow tank. It has a O-ring under the cap which is why it fits/seats so well, not hard to get off and on, but it does take a good little effort to get off (which is a good thing, don't want coolant coming out) I purchased the cap in Blue, and it's a good blue, it's no WRB like the STI comes in, BUT, it goes really well with the other blue aftermarket caps I have under the hood (IAG) when they made them a few years back. I would buy again !! Thanks so much Boomba Racing for making this !
great add on! good fitment, well made , and recommended 100%. it fit perfectly on my 14’forester xt.